From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with SMTP id E5C6C8D0040 for ; Thu, 24 Mar 2011 14:47:27 -0400 (EDT) Date: Thu, 24 Mar 2011 13:47:23 -0500 (CDT) From: Christoph Lameter Subject: Re: [GIT PULL] SLAB changes for v2.6.39-rc1 In-Reply-To: <1300990853.3747.189.camel@edumazet-laptop> Message-ID: References: <20110324142146.GA11682@elte.hu> <20110324172653.GA28507@elte.hu> <1300990853.3747.189.camel@edumazet-laptop> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Eric Dumazet Cc: Pekka Enberg , Ingo Molnar , torvalds@linux-foundation.org, akpm@linux-foundation.org, tj@kernel.org, npiggin@kernel.dk, rientjes@google.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org On Thu, 24 Mar 2011, Eric Dumazet wrote: > > this_cpu_cmpxchg16b_emu: > > pushf > > cli > > > > cmpq %gs:(%rsi), %rax > Random guess > > Masking interrupts, and accessing vmalloc() based memory for the first > time ? Hmmm.. Could be. KVM would not really disable interrupts so this may explain that the test case works here. Simple fix would be to do a load before the cli I guess. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org